4
1
9
2
3
5
9
2
6
1
3
7
9
1
2
2
4
7
4
8
1
6
6
5
1
8
5
7
9
3
8
4
Time 00:00
Mistakes 0
Ready
Easy Sudoku #182
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 32 of 81 |
| Technique score | 79.1 |
| Rated techniques | 2 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 6, column 3 already sees all eight other digits in its row, column and box, so it can only be 9.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.